package section_12.objectSerializable;

import java.io.Externalizable;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectInputStream;
import java.io.ObjectOutput;
import java.io.ObjectOutputStream;

public class Blips {
	@SuppressWarnings("resource")
	public static void main(String[] args) throws FileNotFoundException, IOException, ClassNotFoundException {
		Blip1 b1 = new Blip1();
		Blip2 b2 = new Blip2();
		ObjectOutputStream o = new ObjectOutputStream(new FileOutputStream("Blips.out"));
		System.out.println("Saving Objects");
		o.writeObject(b1);
		o.writeObject(b2);
		o.close();

		ObjectInputStream in = new ObjectInputStream(new FileInputStream("Blips.out"));
		System.out.println("Recoving b1:");
		b1 = (Blip1) in.readObject();

//		Throws an exception
//		System.out.println("Recoving b2");
//		b2 = (Blip2) in.readObject();
	}
}

class Blip1 implements Externalizable {
	public Blip1() {
		System.out.println("Bilp1 Constructor");
	}

	@Override
	public void readExternal(ObjectInput arg0) throws IOException, ClassNotFoundException {
		System.out.println("Blip1.readExternal");
	}

	@Override
	public void writeExternal(ObjectOutput arg0) throws IOException {
		System.out.println("Blip1.writeExternal");
	}
}

class Blip2 implements Externalizable {
	Blip2() {
		System.out.println("Blip2 Constructor");
	}

	@Override
	public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
		System.out.println("Blip2.readExternal");
	}

	@Override
	public void writeExternal(ObjectOutput out) throws IOException {
		System.out.println("Blip2.writeExternal");
	}

}
